import axios from 'axios'
import { MessageBox, Message } from 'element-ui'
import store from '@/store'
import { getToken } from '@/utils/auth'

// create an axios instance
const service = axios.create({
  baseURL: process.env.VUE_APP_BASE_API, // url = base url + request url
  // withCredentials: true, // send cookies when cross-domain requests
  timeout: 10000 // request timeout
})

// request interceptor
service.interceptors.request.use(
  async config => {
    console.log('request -> service.interceptors.request.use =>');
    // do something before request is sent

    if (store.getters.token) {
      // let each request carry token
      // ['X-Token'] is a custom headers key
      // please modify it according to the actual situation

      const auth = JSON.parse(await getToken())
      console.log('request =>' + auth.token + ' ' + JSON.stringify(auth))
      config.headers['x-access-uid'] = auth.uid
      config.headers['x-access-token'] = auth.token
    }
    return config
  },
  error => {
    // do something with request error
    console.log(error) // for debug
    return Promise.reject(error)
  }
)

// response interceptor
service.interceptors.response.use(
  /**
   * If you want to get http information such as headers or status
   * Please return  response => response
   */

  /**
   * Determine the request status by custom code
   * Here is just an example
   * You can also judge the status by HTTP Status Code
   */
  response => {
    const res = response.data

    // if the custom code is not 20000, it is judged as an error.
    if (res.code !== 20000) {
      Message({
        message: res.message || 'Error',
        type: 'error',
        duration: 5 * 1000
      })

      // 50008: Illegal token; 50012: Other clients logged in; 50014: Token expired;
      if (res.code === 50008 || res.code === 50012 || res.code === 50014) {
        // to re-login
        MessageBox.confirm('You have been logged out, you can cancel to stay on this page, or log in again', 'Confirm logout', {
          confirmButtonText: 'Re-Login',
          cancelButtonText: 'Cancel',
          type: 'warning'
        }).then(() => {
          store.dispatch('user/resetToken').then(() => {
            location.reload()
          })
        })
      }
      return Promise.reject(new Error(res.message || 'Error'))
    } else {
      return res
    }
  },
  error => {
    console.log('err' + error) // for debug
    Message({
      message: error.message,
      type: 'error',
      duration: 5 * 1000
    })
    return Promise.reject(error)
  }
)

export default service

// 配置
axios.defaults.baseURL = process.env.VUE_APP_BASE_API
axios.defaults.timeout = 10000
axios.defaults.headers.post['Content-Type'] = 'application/x-www-form-urlencoded;charset=UTF-8'

// Post请求
export function httpPost({ url, data = {}, params = {} }) {
  return axios({
    url,
    method: 'post',
    transformRequest: [function(data) {
      let ret = ''
      for (let it in data) {
        ret += encodeURIComponent(it) + '=' + encodeURIComponent(data[it]) + '&'
      }
      return ret
    }],
    //  发送的数据
    data,
    //  url参数
    params

  }).then(res => {
    return res.data
  })
}

// Get请求
export function httpGet({ url, params = {} }) {
  return axios.get(url, {
    params
  }).then((res) => {
    // console.log('【方法】：httpGet res【参数】：' + JSON.stringify(res))

    return res.data
  }).catch(err => {
    // console.log('【方法】：httpGet【参数】：' + JSON.stringify(err))
    return err.data
  })
}
